The following publications are possibly variants of this publication:
- A general datalog-based framework for tractable query answering over ontologiesAndrea Calì, Georg Gottlob, Thomas Lukasiewicz. PODS 2009: 77-86 [doi]
- A General Datalog-Based Framework for Tractable Query Answering over Ontologies (extended abstract)Andrea Calì, Georg Gottlob, Thomas Lukasiewicz. sebd 2009: 29-36
- Datalog Extensions for Tractable Query Answering over OntologiesAndrea Calì, Georg Gottlob, Thomas Lukasiewicz. In Roberto De Virgilio, Fausto Giunchiglia, Letizia Tanca, editors, Semantic Web Information Management - A Model-Based Perspective. pages 249-279, Springer, 2009. [doi]
- Conjunctive Query Answering in Probabilistic Datalog+/- OntologiesGeorg Gottlob, Thomas Lukasiewicz, Gerardo I. Simari. rr 2011: 77-92 [doi]
- Tractable Query Answering over Ontologies with Datalog+/-Andrea Calì, Georg Gottlob, Thomas Lukasiewicz. dlog 2009: [doi]
- Preference-Based Query Answering in Probabilistic Datalog+/- OntologiesThomas Lukasiewicz, Maria Vanina Martinez, Gerardo I. Simari. otm 2013: 501-518 [doi]
- Preference-Based Query Answering in Datalog+/- OntologiesThomas Lukasiewicz, Maria Vanina Martinez, Gerardo Ignacio Simari. IJCAI 2013: 1017-1023 [doi]
- Preference-Based Query Answering in Probabilistic Datalog+/- OntologiesThomas Lukasiewicz, Maria Vanina Martinez, Gerardo I. Simari, Oana Tifrea-Marciuska. jodsn, 4(2):81-101, 2015. [doi]